Even with scale data, one may choose to run a nonparametric test because there is a large sample size and the data are normal.

Question

Quizplus · Accepted Answer

Nonparametric tests are used when the underlying distribution of the data is unknown, not necessarily because the data are not normally distributed. If the data are normal and the sample size is large enough, it may be appropriate to use a parametric test.

Even with Scale Data, One May Choose to Run a Nonparametric